JP2015099698A - Multicontact terminal - Google Patents

Multicontact terminal Download PDF

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Publication number
JP2015099698A
JP2015099698A JP2013239107A JP2013239107A JP2015099698A JP 2015099698 A JP2015099698 A JP 2015099698A JP 2013239107 A JP2013239107 A JP 2013239107A JP 2013239107 A JP2013239107 A JP 2013239107A JP 2015099698 A JP2015099698 A JP 2015099698A
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Prior art keywords
elastic contact
terminal
tube portion
rectangular tube
contact piece
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JP2013239107A
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JP6086244B2 (en
Inventor
史也 大羽
Fumiya OBA
史也 大羽
雅文 宇野
Masafumi Uno
雅文 宇野
雅之 平本
Masayuki Hiramoto
雅之 平本
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2013239107A priority Critical patent/JP6086244B2/en
Priority to US15/037,335 priority patent/US9748685B2/en
Priority to CN201480063356.8A priority patent/CN105765795B/en
Priority to DE112014005274.4T priority patent/DE112014005274B4/en
Priority to PCT/JP2014/079574 priority patent/WO2015076122A1/en
Publication of JP2015099698A publication Critical patent/JP2015099698A/en
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Publication of JP6086244B2 publication Critical patent/JP6086244B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion

Abstract

PROBLEM TO BE SOLVED: To provide a multi-contact terminal which can be manufactured with a small number of components and a simple configuration, in which the plating of the surface is hard to peel off, and which is excellent in durability.SOLUTION: Disclosed is a multi-contact terminal. A polygonal cylindrical square tube part is provided integrally with a plurality of elastic contact pieces which are extended from each side wall of the square tube part and which are brought into elastic contact with the outer peripheral surface of a round bar-like mating terminal in the inner side of the square tube part. The plurality of elastic contact pieces are formed equally in the length dimension in a fitting direction to the mating terminal and are formed in different positions in the fitting direction to the mating terminal.

Description

本発明は、多接点型端子に関する。   The present invention relates to a multi-contact type terminal.

電気自動車等に用いられる大電流用の接続端子として、多数の接点で端子を接触させ、接触抵抗を低減して発熱量を低く抑えることが可能な、多接点型端子が知られている。   As a connection terminal for a large current used in an electric vehicle or the like, a multi-contact type terminal is known that can contact a terminal with a large number of contacts to reduce contact resistance and to reduce a heat generation amount.

多接点型端子の一例として、例えば特許文献１に記載された端子が知られている。この端子は、平板状の雄タブに対して複数の弾性接触片を接触させるものである。複数の弾性接触片は、扁平な四角筒状をなす基部の天井板および底板の前端縁から前方側に向けて対向するように、かつ、片持ち状に延出して設けられている。これらの弾性接触片は、別体のカバーにより覆われ、保護されている。   As an example of a multi-contact type terminal, for example, a terminal described in Patent Document 1 is known. This terminal is to bring a plurality of elastic contact pieces into contact with a flat male tab. The plurality of elastic contact pieces are provided so as to be opposed to the front side from the front end edges of the base ceiling plate and the bottom plate that form a flat rectangular tube shape, and extend in a cantilever manner. These elastic contact pieces are covered and protected by a separate cover.

また、多接点型端子の他の例として、例えば特許文献２に記載された端子が知られている。この端子は、断面円形の棒状をなす丸ピンの外周面に対して、複数の弾性接触片を接触させるものである。複数の弾性接触片は、円筒状をなす筒部の前端縁から前方側に向けて片持ち状に延出して設けられている。   As another example of the multi-contact type terminal, for example, a terminal described in Patent Document 2 is known. In this terminal, a plurality of elastic contact pieces are brought into contact with the outer peripheral surface of a round pin having a circular cross section. The plurality of elastic contact pieces are provided so as to be cantilevered from the front end edge of the cylindrical tube portion toward the front side.

特開２０１２−１６４４８６号公報JP 2012-164486 A 特開２０１２−２２７０９０号公報JP 2012-227090 A

ところで、上記した特許文献１の多接点型端子においては、雄タブと弾性接触片とは線接触する構成であるから、雄タブが対向する弾性接触片の間に正規の嵌合姿勢から傾いて挿入された場合、雄タブが弾性接触片に対して局所的に強く押し付けられる箇所があったり、逆に、雄タブと弾性接触片とが部分的に接触不良となる箇所が生じる虞がある。またこのように雄タブが弾性接触片に対して局所的に強く押し付けられる場合には、弾性接触片のめっきが摩耗により剥がれ易くなり、耐久性を損ねるという問題がある。   By the way, in the multi-contact type terminal of Patent Document 1 described above, since the male tab and the elastic contact piece are in line contact with each other, the male tab is inclined from the normal fitting posture between the opposing elastic contact pieces. When inserted, there is a possibility that the male tab may be strongly pressed locally against the elastic contact piece, or conversely, there may be a place where the male tab and the elastic contact piece partially contact poorly. In addition, when the male tab is strongly pressed locally against the elastic contact piece in this way, there is a problem that the plating of the elastic contact piece is easily peeled off due to wear and impairs durability.

一方、特許文献２に示す丸ピン用の多接点型端子では、複数の弾性接触片は丸ピンの外周面に沿う形状とされている。これらの弾性接触片は、円筒状の部材にスリットを入れて絞り加工を行うことにより製造されるので、寸法精度が出し難く、製造が難しいという問題がある。   On the other hand, in the multi-contact terminal for a round pin shown in Patent Document 2, the plurality of elastic contact pieces are shaped along the outer peripheral surface of the round pin. Since these elastic contact pieces are manufactured by inserting a slit in a cylindrical member and performing drawing, there is a problem that it is difficult to obtain dimensional accuracy and manufacture is difficult.

さらに、いずれの多接点型端子においても、弾性接触片を保護するカバーを設ける際には、部品点数が増加するとともに構造が複雑になり、組み立て作業が煩雑になるという問題がある。   Further, in any multi-contact type terminal, when a cover for protecting the elastic contact piece is provided, there are problems that the number of parts increases, the structure becomes complicated, and the assembling work becomes complicated.

本発明は上記のような事情に基づいて完成されたものであって、相手側端子に対して複数の弾性接触片を接触させる多接点型端子において、部品点数が少なく、簡易な構成で容易に製造可能であり、かつ、表面のめっきが剥がれ難く耐久性に優れる多接点型端子を提供することを目的とする。   The present invention has been completed based on the above situation, and in a multi-contact type terminal in which a plurality of elastic contact pieces are brought into contact with a counterpart terminal, the number of parts is small, and it is easy with a simple configuration. An object of the present invention is to provide a multi-contact type terminal that can be manufactured and has excellent durability because the plating on the surface is difficult to peel off.

上記課題を解決するためになされた本発明の多接点型端子は、多角筒状の角筒部と、前記角筒部の各側壁から延出され、前記角筒部の内側において丸棒状の相手側端子の外周面に対して弾性接触される複数の弾性接触片と、が一体的に設けられているところに特徴を有する。   The multi-contact type terminal of the present invention made to solve the above problems is a rectangular tube-shaped square tube part and a round bar-like mating member that extends from each side wall of the square tube part and is inside the square tube part. A plurality of elastic contact pieces that are elastically contacted with the outer peripheral surface of the side terminal are characterized in that they are integrally provided.

本発明の多接点型端子によれば、弾性接触片は角筒部の内側において相手側端子と接続される構成であるから、角筒部が弾性接触片を保護するカバーの役割を果たす。しかも、弾性接触片と角筒部とは一体とされているから、部品点数を少なくすることができる。   According to the multi-contact type terminal of the present invention, since the elastic contact piece is connected to the mating terminal inside the square tube portion, the square tube portion serves as a cover for protecting the elastic contact piece. Moreover, since the elastic contact piece and the square tube portion are integrated, the number of parts can be reduced.

また、本発明の多接点型端子は曲げ加工により製造可能であるから、従来の丸ピン用の多接点型端子のように絞り加工を行う必要がなく、容易に製造可能である。また、曲げ加工は寸法管理も容易であるから、接触圧の調整が容易であり、表面のめっきが剥がれ難い多接点型端子とすることができる。   Further, since the multi-contact type terminal of the present invention can be manufactured by bending, it is not necessary to perform drawing processing unlike the conventional multi-contact type terminal for a round pin, and can be easily manufactured. In addition, since the dimensional management is easy in the bending process, the contact pressure can be easily adjusted, and the multi-contact terminal can be obtained in which the plating on the surface is difficult to peel off.

本発明の多接点型端子は、以下の構成を備えてもよい。   The multi-contact type terminal of the present invention may have the following configuration.

複数の弾性接触片は、相手側端子との嵌合方向の長さ寸法が同等とされるとともに、相手側端子との嵌合方向において異なる位置に配される構成としてもよい。   The plurality of elastic contact pieces may have the same length in the mating direction with the mating terminal and may be arranged at different positions in the mating direction with the mating terminal.

このような構成とした場合には、複数の弾性接触片は、相手側端子に対して長さ方向、すなわち、嵌合方向の異なる位置において接触することとなるため、相手側端子と傾いて嵌合されることが防止される。すなわち、相手側端子と正規の姿勢で嵌合されることとなるから、弾性接触片が局所的に相手側端子に強く擦りつけられることがなく、めっきがより剥がれ難くなる。   In such a configuration, the plurality of elastic contact pieces come into contact with the mating terminal in the length direction, that is, at a position in a different fitting direction, so that the mating terminal is inclined with the mating terminal. It is prevented from being combined. That is, since the mating terminal and the mating terminal are fitted in a normal posture, the elastic contact piece is not strongly rubbed against the mating terminal locally, and the plating is more difficult to peel off.

また、角筒部に、弾性接触片の基端部に隣接して弾性接触片の延出方向に沿って延出された拡張部を設ける構成としてもよい。   Moreover, it is good also as a structure which provides the expansion part extended along the extension direction of an elastic contact piece adjacent to the base end part of an elastic contact piece in a square cylinder part.

このような構成とすると、弾性接触片の基端部は拡張部により剛性が高まるから、相手側端子が挿入される際に、弾性接触片の基端部が相手側端子に押圧されて変形すること防止される。   With such a configuration, the rigidity of the base end portion of the elastic contact piece is increased by the expansion portion, so that when the mating terminal is inserted, the base end portion of the elastic contact piece is pressed against the mating terminal and deformed. Is prevented.

また、弾性接触片は、角筒部の側壁のうち相手側端子との嵌合方向の前端縁から延出されるとともに折り返し部により後方側に向けて折り返され、拡張部は、折り返し部よりも前方側まで延出される構成としてもよい。   The elastic contact piece extends from the front end edge in the fitting direction with the mating terminal on the side wall of the rectangular tube portion and is folded back toward the rear side by the folded portion, and the extended portion is forward of the folded portion. It is good also as a structure extended to the side.

このような構成とすると、多接点型端子の前方側から相手側端子や機器が突き当てられた場合でも、前方側に延出された拡張部によって折り返し部が保護される。従って、弾性接触片の変形を防止することができる。   With such a configuration, even when a counterpart terminal or device is abutted from the front side of the multi-contact type terminal, the folded portion is protected by the extended portion extending to the front side. Therefore, deformation of the elastic contact piece can be prevented.

さらに、角筒部は、板状部材を角筒状に折り曲げるとともに、その折り曲げ方向の端縁同士を固定することで開き止めされる構成としてもよい。このような構成とすると、多接点型端子を容易に製造することができる。   Furthermore, the rectangular tube portion may be configured to be prevented from opening by bending the plate member into a rectangular tube shape and fixing the edges in the bending direction. With such a configuration, a multi-contact terminal can be easily manufactured.

本発明によれば、部品点数が少なく、簡易な構成で容易に製造可能であって、かつ、表面のめっきが剥がれ難く耐久性に優れる多接点型端子が得られる。   According to the present invention, it is possible to obtain a multi-contact type terminal that has a small number of parts, can be easily manufactured with a simple configuration, and is excellent in durability because the plating on the surface is difficult to peel off.

実施形態１の多接点型端子の斜視図The perspective view of the multi-contact type terminal of Embodiment 1. 同じく多接点型端子の断面図Cross section of multi-contact type terminal 同じく多接点型端子を相手側端子と嵌合させた状態の断面図Similarly, a cross-sectional view of the multi-contact type terminal mated with the mating terminal 実施形態２の多接点型端子の斜視図The perspective view of the multi-contact type terminal of Embodiment 2. 同じく多接点型端子の断面図Cross section of multi-contact type terminal 同じく多接点型端子を相手側端子と嵌合させた状態の断面図Similarly, a cross-sectional view of the multi-contact type terminal mated with the mating terminal 多接点型端子の正面図Front view of multi-contact terminal 多接点型端子の一部展開図Partial development of multi-contact terminals

＜実施形態１＞
以下、実施形態１について、図１ないし図３を参照しつつ詳細に説明する。 <Embodiment 1>
Hereinafter, the first embodiment will be described in detail with reference to FIGS. 1 to 3.

本実施形態の多接点型端子は、電気自動車やハイブリッド自動車等の電力供給線等に用いられる大電流端子である。多接点型端子は、図１に示すように、丸棒状の相手側の雄端子１０を内部に嵌合可能な雌端子２０であって、雄端子１０の外周面に、雌端子２０に設けられた複数の弾性接触片３０を接触させる構成のものである。以下、各構成部材において、相手側端子との接続方向を前方とし、また、図２の上側を上方、下側を下方として説明する。   The multi-contact terminal of the present embodiment is a large current terminal used for power supply lines of electric vehicles and hybrid vehicles. As shown in FIG. 1, the multi-contact type terminal is a female terminal 20 in which a mating male terminal 10 having a round bar shape can be fitted, and is provided on the outer peripheral surface of the male terminal 10 on the female terminal 20. A plurality of elastic contact pieces 30 are brought into contact with each other. Hereinafter, in each component member, the connection direction with the mating terminal will be referred to as the front, and the upper side in FIG.

雄端子１０は、銅合金等の導電性に優れた金属材料により形成され、その一端は図示しない電線に接続され、他端側が丸棒状の接続部１１とされている。接続部１１の先端部には、やや縮径された案内面１１Ａが形成されている（図３参照）。   The male terminal 10 is formed of a metal material having excellent conductivity, such as a copper alloy, one end of which is connected to an electric wire (not shown), and the other end is a round bar-like connection portion 11. A guide surface 11A having a slightly reduced diameter is formed at the distal end of the connecting portion 11 (see FIG. 3).

雌端子２０は、銅合金等の導電性に優れた金属板を所定形状にプレス加工することによって形成され、図１および図２に示すように、電線３８に接続される電線接続部２１と、雄端子１０の接続部１１に接続する本体部２３とが、繋ぎ部２２を介して前後に連なった形態をなしている。   The female terminal 20 is formed by pressing a metal plate excellent in conductivity such as a copper alloy into a predetermined shape, and as shown in FIGS. 1 and 2, an electric wire connection portion 21 connected to the electric wire 38, The main body part 23 connected to the connection part 11 of the male terminal 10 is connected to the front and rear via the connecting part 22.

本体部２３は、略七角筒状をなす角筒部２５と、角筒部２５の前方側の端縁から前方に向けて一体的に延出されるとともに、内側に向けて折り返された７つの弾性接触片３０とを有してなる。   The main body portion 23 is integrally formed with a rectangular tube portion 25 having a substantially heptagonal tube shape and seven end portions that are integrally extended from the front edge of the rectangular tube portion 25 toward the front and folded inward. And an elastic contact piece 30.

角筒部２５は、平坦な金属板を断面略七角形状に曲げ加工することで略七角筒状に形成され、その曲げ方向の端縁同士を突き合わせるとともに係止部２６により係止することで、開き止めされている。係止部２６は、角筒部２５の曲げ方向における一端側から延出して設けられたロ字形状の係止片２７と、他端側の外面に突出するように切り起こし形成された係止凸部２８とから構成されている。角筒部２５は、七角筒状に折り曲げられた後、外側に向けて突出している係止凸部２８に係止片２７を外側から被せるように、やや屈曲させつつ外嵌させることにより、開き止めがなされる構成とされている。   The rectangular tube portion 25 is formed into a substantially heptagonal tube shape by bending a flat metal plate into a substantially heptagonal cross section, but the ends in the bending direction are butted together and locked by the locking portion 26. In that way, it is prevented from opening. The locking portion 26 has a square-shaped locking piece 27 that extends from one end side in the bending direction of the rectangular tube portion 25, and a locking portion that is cut and raised so as to protrude to the outer surface of the other end side. It is comprised from the convex part 28. FIG. After the square tube portion 25 is bent into a heptagon tube shape, it is fitted outwardly while being slightly bent so as to cover the locking piece 27 from the outside to the locking convex portion 28 protruding outward. It is configured to be prevented from opening.

角筒部２５の略七角筒状の各側壁の中央よりやや後方側には、内側に向けて突出する規制突部２９が切り起こし形成されている（図２参照）。これらの規制突部２９は、弾性接触片３０の過度な変形を規制するものである。７つの規制突部２９は、前後方向における同位置に配置されている。   A regulating projection 29 projecting inward is formed on the slightly rear side of the center of each side wall of the substantially heptagonal tube shape of the rectangular tube portion 25 (see FIG. 2). These restricting protrusions 29 restrict excessive deformation of the elastic contact piece 30. The seven regulating protrusions 29 are arranged at the same position in the front-rear direction.

ここで、略七角筒状の角筒部２５の各側壁を、係止片２６が設けられた側壁から順に２５Ａ，２５Ｂ，２５Ｃ，２５Ｄ，２５Ｅ，２５Ｆ，２５Ｇとすると、繋ぎ部２２は、２５Ｃ，２５Ｄ，２５Ｅの後端縁から後方に向けて延出されている。また、側壁２５Ｂ，２５Ｆの後端縁からは、後方に向けて補強部２４が延出形成されている。繋ぎ部２２と補強部２４とは、一体に形成されている。   Here, if each side wall of the square tube portion 25 having a substantially heptagonal tube shape is 25A, 25B, 25C, 25D, 25E, 25F, and 25G in order from the side wall provided with the locking piece 26, the connecting portion 22 is 25C, 25D, 25E is extended rearward from the rear edge. In addition, reinforcing portions 24 are formed to extend rearward from the rear end edges of the side walls 25B and 25F. The connecting portion 22 and the reinforcing portion 24 are integrally formed.

一方、７つの弾性接触片３０は、角筒部２５の各側壁２５Ａ〜２５Ｇの前端縁から前方側に向けて延出されるとともに、前後方向における同位置（折り返し部３１とする）において角筒部２５の内側に折り返されてなる。弾性接触片３０は、図２に示すように、折り返し部３１によって内側に向けて折り返された後、先端側（後方側）に向けて斜め内側に延びるとともに、先端部が斜め外側に向けて延びるように屈曲した形状とされている。弾性接触片３０のうち内側に最も膨出した部分（屈曲部分）は、雄端子１０の接続部１１に点接触する接点部３２とされている。接点部３２は、角筒部２５内において、規制突部２９よりも後方側に位置するように設定されている。また弾性接触片３０の先端部３３は、角筒部２５の後端より前方側に位置するように寸法が設定されている。   On the other hand, the seven elastic contact pieces 30 extend from the front end edges of the side walls 25A to 25G of the square tube portion 25 toward the front side, and at the same position in the front-rear direction (referred to as the folded portion 31). 25 is folded inside. As shown in FIG. 2, the elastic contact piece 30 is folded inward by the folded portion 31, and then extends obliquely inward toward the distal end side (rear side), and the distal end portion extends obliquely outward. In this way, the shape is bent. A portion of the elastic contact piece 30 that bulges most inward (bent portion) is a contact portion 32 that makes point contact with the connection portion 11 of the male terminal 10. The contact portion 32 is set so as to be located on the rear side of the restricting protrusion 29 in the rectangular tube portion 25. In addition, the size of the distal end portion 33 of the elastic contact piece 30 is set so as to be positioned in front of the rear end of the rectangular tube portion 25.

さらに、各弾性接触片３０の幅寸法は、各側壁２５Ａ〜２５Ｇの幅寸法よりも小さく設定されている。   Furthermore, the width dimension of each elastic contact piece 30 is set smaller than the width dimension of each side wall 25A-25G.

７つの弾性接触片３０は、長さ寸法、幅寸法、屈曲形状等、全て同形状に形成されている。   The seven elastic contact pieces 30 are all formed in the same shape, such as a length dimension, a width dimension, and a bent shape.

角筒部２５の前端縁のうち隣り合う弾性接触片３０の各延出部（基端部）の間には、前方側に向けて延びる拡張部３４が設けられている。角筒部２５は、これら拡張部３４において前後方向に沿って折り曲げられ、略七角筒状とされている。なお、プレス成形前の角筒部２５の曲げ方向における両端縁には、拡張部３４の半分の幅を有する端部拡張部３４Ａが設けられており、プレス成形によって端部拡張部３４Ａ同士を突き合わせることにより、他の拡張部３４と同等幅の拡張部３４を形成できるように構成されている。   An extended portion 34 extending toward the front side is provided between the extended portions (base end portions) of the adjacent elastic contact pieces 30 in the front end edge of the rectangular tube portion 25. The rectangular tube portion 25 is bent along the front-rear direction at these extended portions 34 to have a substantially heptagonal tube shape. In addition, the edge expansion part 34A which has the half width of the expansion part 34 is provided in the both ends edge in the bending direction of the square cylinder part 25 before press molding, and end part expansion part 34A is faced | matched by press molding. Thus, the extended portion 34 having the same width as the other extended portions 34 can be formed.

上述した弾性接触片３０の折り返し部３１は、これら拡張部３４の前端より後方側に位置するように設定されている（図２参照）。   The folded portion 31 of the elastic contact piece 30 described above is set so as to be located on the rear side from the front ends of the expanded portions 34 (see FIG. 2).

電線接続部２１は繋ぎ部２２の後端縁から後方に向けて延出されてなり、載置部３５と、載置部３５の両側縁部から斜め上方に向けて延びる一対のバレル部３６とから構成されている。   The wire connecting portion 21 extends rearward from the rear end edge of the connecting portion 22, and includes a placement portion 35 and a pair of barrel portions 36 extending obliquely upward from both side edge portions of the placement portion 35. It is composed of

本実施形態の雌端子２０は上記構成であって、次に、雌端子２０の製造方法について説明する。   The female terminal 20 of this embodiment is the said structure, Next, the manufacturing method of the female terminal 20 is demonstrated.

まず、所定形状に打ち抜かれた金属板の、弾性接触片３０に相当する部分を曲げ加工（プレス加工）することにより、弾性接触片３０を所定形状とする。そして、電線接続部２１および繋ぎ部２２を曲げ加工するとともに、拡張部３４に相当する位置において前後方向に沿って折り曲げて角筒部２５を形成し、折り曲げ方向における一端側に形成された係止凸部２８に対して外側から係止片２７を屈曲させつつ被せるように係止して開き止めする。これにより、図１に示す所定形状の雌端子２０が得られる。   First, the elastic contact piece 30 is made into a predetermined shape by bending (pressing) a portion corresponding to the elastic contact piece 30 of a metal plate punched into a predetermined shape. Then, the wire connecting portion 21 and the connecting portion 22 are bent and bent along the front-rear direction at a position corresponding to the extended portion 34 to form the square tube portion 25, and the latch formed on one end side in the bending direction. The locking piece 27 is locked so as to be covered while being bent with respect to the convex portion 28 from the outside and is prevented from opening. Thereby, the female terminal 20 of the predetermined shape shown in FIG. 1 is obtained.

次に、雄端子１０と雌端子２０との接続動作および作用効果について説明する。   Next, the connection operation and effect of the male terminal 10 and the female terminal 20 will be described.

まず、電線３８を電線接続部２１にかしめて接続した雌端子２０内に雄端子１０の接続部１１を挿入すると、接続部１１は、全ての弾性接触片３０を外側に向けて弾性変形させつつ、７つの接点部３２の間に割って入る。この時、隣り合う弾性接触片３０の間には角筒部２５から延出された拡張部３４が設けられており、各弾性接触片３０の基端部は、これらの拡張部３４により剛性が付与されているので、接続部１１の挿入に伴い、弾性接触片３０の基端部が持ち上がって角筒部２５の奥方（後方側）に押し込まれることが防止される。   First, when the connecting portion 11 of the male terminal 10 is inserted into the female terminal 20 in which the electric wire 38 is caulked and connected to the electric wire connecting portion 21, the connecting portion 11 elastically deforms all the elastic contact pieces 30 outward. , Split between the seven contact portions 32. At this time, an extended portion 34 extending from the rectangular tube portion 25 is provided between the adjacent elastic contact pieces 30, and the base end portion of each elastic contact piece 30 is rigid by the extended portions 34. Therefore, it is possible to prevent the proximal end portion of the elastic contact piece 30 from being lifted and pushed into the back side (rear side) of the rectangular tube portion 25 as the connection portion 11 is inserted.

また、弾性接触片３０は奇数（７つ）とされており、角筒部２５の径方向における一の弾性接触片３０の対称軸上には他の弾性接触片３０が配されていないので、接続部１１は、一の弾性接触片３０により、その弾性接触片３０と対向する角部（拡張部３４）に向けて押圧される。このような作用が７つのすべての弾性接触片３０において働くと、結局、接続部１１は７つの方向全てに均等な接触圧で押圧されることとなり、その結果、雄端子１０は、挿入方向が傾くことなく（こじれることなく）、本体部２３の奥方に挿入される。   The elastic contact pieces 30 are odd numbers (seven), and the other elastic contact pieces 30 are not arranged on the symmetry axis of the one elastic contact piece 30 in the radial direction of the rectangular tube portion 25. The connecting portion 11 is pressed by one elastic contact piece 30 toward a corner portion (extended portion 34) facing the elastic contact piece 30. If such an action is applied to all seven elastic contact pieces 30, eventually, the connecting portion 11 is pressed with an equal contact pressure in all seven directions. As a result, the male terminal 10 is inserted in the insertion direction. It is inserted in the back of the main body part 23 without tilting (without twisting).

接続部１１の挿入が進み、角筒部２５内の正規位置まで挿入されると、接続部１１は、弾性接触片３０の各接点部３２により弾性的に挟持される。これにより、雄雌の端子１０，２０間が電気的に接続される（図３参照）。このとき、７つの接点部３２は各弾性接触片３０の前後方向における同位置に設けられており、しかも、接続部１１に対して７つの方向すべてにおいて均等な接触圧で押圧しているから、接続部１１は本体部２３の中央に安定的に保持される。   When the insertion of the connecting portion 11 proceeds and is inserted to the regular position in the rectangular tube portion 25, the connecting portion 11 is elastically held by the contact portions 32 of the elastic contact piece 30. Thus, the male and female terminals 10 and 20 are electrically connected (see FIG. 3). At this time, the seven contact portions 32 are provided at the same position in the front-rear direction of each elastic contact piece 30, and are pressed against the connection portion 11 with an equal contact pressure in all seven directions. The connection part 11 is stably held at the center of the main body part 23.

このように、本実施形態の雌端子２０によれば、弾性接触片３０は一体に設けられた角筒部２５の内部に配置されているので、弾性接触片３０を保護するカバーを別体で設ける必要がなく、部品点数が少なくてすむ。また、拡張部３４の先端は弾性接触片３０の折り返し部３１より前方側まで延びているので、雌端子２０の前方側から機器や相手側端子が嵌合方向とは異なる方向から当てられた場合でも、弾性接触片３０の折り返し部３１を保護し、変形を防ぐことができる。   Thus, according to the female terminal 20 of this embodiment, since the elastic contact piece 30 is arrange | positioned inside the square cylinder part 25 provided integrally, the cover which protects the elastic contact piece 30 is another body. There is no need to provide a small number of parts. Moreover, since the front-end | tip of the expansion part 34 is extended from the folding | returning part 31 of the elastic contact piece 30 to the front side, when the apparatus and the other party terminal are applied from the front side of the female terminal 20 from the direction different from a fitting direction. However, the folded portion 31 of the elastic contact piece 30 can be protected and deformation can be prevented.

また、雌端子２０は一枚の金属板を曲げ加工することにより形成されており、折り曲げ方向の端部同士を係止部２６により係止する簡単な構成であるので、容易に製造可能である。さらに、曲げ加工は寸法管理が容易であるから、接触圧の調整が容易であり、表面のめっきが剥がれ難い多接点型端子とすることができる。   Further, the female terminal 20 is formed by bending a single metal plate, and has a simple configuration in which the end portions in the bending direction are locked by the locking portion 26, and thus can be easily manufactured. . In addition, since the dimensional management is easy in the bending process, the contact pressure can be easily adjusted, and the multi-contact type terminal where the surface plating is difficult to peel off can be obtained.

＜実施形態２＞
次に、実施形態２について、図４ないし図８を参照しつつ詳細に説明する。なお、以下において実施形態１と同様の構成には同一符号を付すこととし、重複する説明を省略する。 <Embodiment 2>
Next, the second embodiment will be described in detail with reference to FIGS. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

本実施形態の雌端子４０は、図４および図５に示すように、電線３８に接続される電線接続部４１と、雄端子１０の接続部１１に接続される本体部４３とが、繋ぎ部４２を介して前後に連なった形態をなしている。   As shown in FIGS. 4 and 5, the female terminal 40 of the present embodiment includes a wire connecting portion 41 connected to the electric wire 38 and a main body portion 43 connected to the connecting portion 11 of the male terminal 10. 42 is connected to the front and rear through 42.

本体部４３は、略八角筒状をなす角筒部４５と、角筒部４５の前方側の端縁から前方に向けて延出されるとともに内側に折り返された８つの弾性接触片５０とを有してなる。   The main body 43 has a rectangular tube portion 45 having a substantially octagonal cylindrical shape, and eight elastic contact pieces 50 that extend forward from the front edge of the rectangular tube portion 45 and are folded back inward. Do it.

角筒部４５は、図８に示すような展開形状に打ち抜かれた平坦な金属板を、プレス成型機により断面略八角形状に曲げ加工することで、略八角筒状に形成されている（図７参照）。その曲げ方向の両端縁は、一端側から延出して設けられた係止片４７と、他端側に外側に向けて突設された係止凸部４８とからなる係止部４６により互いに係止され、開き止めされている。   The rectangular tube portion 45 is formed in a substantially octagonal cylindrical shape by bending a flat metal plate punched into a developed shape as shown in FIG. 8 into a substantially octagonal cross section by a press molding machine (FIG. 7). Both end edges in the bending direction are engaged with each other by a locking portion 46 including a locking piece 47 extending from one end side and a locking projection 48 projecting outward on the other end side. Stopped and prevented from opening.

以下、略八角筒状の角筒部４５の８つの各側壁を、係止片４７が設けられた側壁から順に４５Ａ，４５Ｂ，４５Ｃ，４５Ｄ，４５Ｅ，４５Ｆ，４５Ｇ，４５Ｈとして説明する。   Hereinafter, the eight side walls of the substantially octagonal cylindrical tube portion 45 will be described as 45A, 45B, 45C, 45D, 45E, 45F, 45G, and 45H in order from the side wall on which the locking piece 47 is provided.

本実施形態において角筒部４５は、図８に示すように、前後方向の長さが異なる２種類の側壁から構成されている。具体的には、側壁４５Ａ，４５Ｃ，４５Ｅ，４５Ｇは第１側壁４５１であり、側壁４５Ｂ，４５Ｄ，４５Ｆ，４５Ｈは、第１側壁４５１より前後方向の長さが長い第２側壁４５２である。第１側壁４５１および第２側壁４５２の幅寸法（図８における上下方向の寸法）は、同等とされている。角筒部４５は、これら第１側壁４５１および第２側壁４５２が、それらの後端位置を同一直線上に揃えた状態で交互に配置されることにより、展開状態において略櫛形に形成されている。   In the present embodiment, as shown in FIG. 8, the rectangular tube portion 45 is composed of two types of side walls having different lengths in the front-rear direction. Specifically, the side walls 45A, 45C, 45E, and 45G are first side walls 451, and the side walls 45B, 45D, 45F, and 45H are second side walls 452 that are longer in the front-rear direction than the first side walls 451. The first sidewall 451 and the second sidewall 452 have the same width (the vertical dimension in FIG. 8). The rectangular tube portion 45 is formed in a substantially comb shape in the unfolded state by alternately arranging the first side walls 451 and the second side walls 452 with their rear end positions aligned on the same straight line. .

角筒部４５の各側壁４５Ａ〜４５Ｈの中央付近には、内側に向けて突出する規制突部４９が切り起こし形成されている（図５参照）。すなわち、第１側壁４５１（側壁４５Ａ，４５Ｃ，４５Ｅ，４５Ｇ）に形成された第１規制突部４９１は、第２側壁４５２（側壁４５Ｂ，４５Ｄ，４５Ｆ，４５Ｈ）に形成された第２規制突部４９２よりも後方側に設けられており、互いに前後方向にずれて配置されている（図８参照）。   In the vicinity of the center of each of the side walls 45 </ b> A to 45 </ b> H of the rectangular tube portion 45, a regulation protrusion 49 protruding inward is formed by cutting and raising (see FIG. 5). That is, the first restriction protrusion 491 formed on the first side wall 451 (side walls 45A, 45C, 45E, 45G) is the second restriction protrusion formed on the second side wall 452 (side walls 45B, 45D, 45F, 45H). It is provided on the rear side of the part 492 and is arranged so as to be shifted in the front-rear direction (see FIG. 8).

一方、８つの弾性接触片５０は、図８に示す展開状態において、角筒部４５の各側壁４５Ａ〜４５Ｈの前端縁から前方側に向けて延出形成されている。弾性接触片５０の幅寸法は、第１側壁４５１および第２側壁４５２の幅寸法の約１／２とされており、各側壁４５Ａ〜４５Ｈの幅方向における中央部から延出されている。   On the other hand, the eight elastic contact pieces 50 are formed to extend from the front end edges of the side walls 45A to 45H of the rectangular tube portion 45 toward the front side in the unfolded state shown in FIG. The width dimension of the elastic contact piece 50 is about ½ of the width dimension of the first side wall 451 and the second side wall 452, and extends from the center in the width direction of each of the side walls 45A to 45H.

８つの弾性接触片５０は、前後方向の長さ寸法および幅寸法が、全て同寸法とされている。すなわち、第１側壁４５１（側壁４５Ａ，４５Ｃ，４５Ｅ，４５Ｇ）から延出された第１弾性接触片５０１は、第２側壁４５２（側壁４５Ｂ，４５Ｄ，４５Ｆ，４５Ｈ）から延出された第２弾性接触片５０２より後方側にずれて配置されている。   The eight elastic contact pieces 50 have the same length and width in the front-rear direction. That is, the first elastic contact piece 501 extended from the first side wall 451 (side walls 45A, 45C, 45E, 45G) is the second extended from the second side wall 452 (side walls 45B, 45D, 45F, 45H). The elastic contact piece 502 is disposed so as to be shifted rearward.

角筒部４５の前端縁のうち、図８に示す展開状態において隣り合う弾性接触片５０（第１弾性接触片５０１および第２弾性接触片５０２）の各延出部（基端部）間には、前方側に向けて延びる拡張部５４（全７つ）が設けられている。これら７つの拡張部５４の前端縁は、全て同一線上に配置されている。より詳細には、一の拡張部５４とその隣の弾性接触片５０との間に設けられるスリット５５の長さは、拡張部５４の両側で異なっており、第１側壁４５１側に位置する第１スリット５５１の長さは、第２側壁４５２側に位置する第２スリット５５２の長さよりも長くなっている。このようにスリット５５の長さが異なることで、第１弾性接触片５０１および第２弾性接触片５０２が前後方向において異なる位置に配置されるようになっている。   Of the front end edge of the rectangular tube portion 45, between the extending portions (base end portions) of the elastic contact pieces 50 (the first elastic contact piece 501 and the second elastic contact piece 502) adjacent in the unfolded state shown in FIG. Are provided with extended portions 54 (seven in total) extending toward the front side. The front end edges of these seven extended portions 54 are all arranged on the same line. More specifically, the length of the slit 55 provided between the one extended portion 54 and the elastic contact piece 50 adjacent thereto is different on both sides of the extended portion 54, and the first side wall 451 is located on the first side wall 451 side. The length of the first slit 551 is longer than the length of the second slit 552 located on the second side wall 452 side. Thus, since the length of the slit 55 is different, the first elastic contact piece 501 and the second elastic contact piece 502 are arranged at different positions in the front-rear direction.

なお、展開状態における角筒部４５の、曲げ方向の両側縁の前端縁には、拡張部５４は設けられていない。代わりに、一方側は、係止片４７が角筒部４５（側壁４５Ａ）より前方側に延出形成されることにより、この係止片４７が、組み立て状態において拡張部５４と同様の作用を呈するようになっている。なお、係止片４７の前端縁は、拡張部５４の前端縁より後方側に配置されている。また、係止片４７の幅寸法は、拡張部５４の幅寸法よりも大きく設定されている。   In addition, the extended part 54 is not provided in the front end edge of the both-sides edge of the bending direction of the square cylinder part 45 in the expansion | deployment state. Instead, on one side, the locking piece 47 is formed to extend forward from the rectangular tube portion 45 (side wall 45A), so that the locking piece 47 functions in the same manner as the expansion portion 54 in the assembled state. It has come to be presented. The front end edge of the locking piece 47 is disposed on the rear side of the front end edge of the extended portion 54. Further, the width dimension of the locking piece 47 is set to be larger than the width dimension of the extended portion 54.

角筒部４５は、これら拡張部５４において前後方向に沿って折り曲げられ（図８の点線）、略八角筒状とされる（図７参照）。   The rectangular tube portion 45 is bent along the front-rear direction in these extended portions 54 (dotted line in FIG. 8) to form a substantially octagonal tube shape (see FIG. 7).

弾性接触片５０は、図５に示すように、各側壁４５Ａ〜４５Ｈからの延出基端部から前方側に所定距離Ｌを隔てた位置において、角筒部４５の内側に向けて折り返されてなる（折り返し部５１とする）。すなわち、第１弾性接触片５０１の折り返し部５１１と第２弾性接触片５０２の折り返し部５１２とは、前後方向にずれて配置されている。これら折り返し部５１は、拡張部５４の前端より後方側に位置するように設定されている。   As shown in FIG. 5, the elastic contact piece 50 is folded back toward the inside of the rectangular tube portion 45 at a position spaced a predetermined distance L forward from the extending base end portion from each of the side walls 45 </ b> A to 45 </ b> H. (Referred to as the folded portion 51). That is, the folded portion 511 of the first elastic contact piece 501 and the folded portion 512 of the second elastic contact piece 502 are arranged so as to be shifted in the front-rear direction. These folded portions 51 are set so as to be located rearward from the front end of the extended portion 54.

弾性接触片５０は、図５に示すように、折り返し部５１によって内側に向けて折り返された後、先端側（後方側）に向けて斜め内側に延びるとともに、先端部が斜め外側に向けて延びるように屈曲した形状とされており、内側に最も膨出した部分が、雄端子１０の接続部１１に点接触する接点部５２とされている。   As shown in FIG. 5, the elastic contact piece 50 is folded inward by the folded portion 51, and then extends obliquely inward toward the distal end side (rear side), and the distal end portion extends obliquely outward. In this way, the most bulged portion is the contact portion 52 that makes point contact with the connection portion 11 of the male terminal 10.

８つの各弾性接触片５０の屈曲形状は、全て同形状とされている。すなわち、第１弾性接触片５０１の第１接点部５２１は、第２弾性接触片５０２の第２接点部５２２よりも後方側に配置されている。また、これらの各接点部５２は、各弾性接触片５０の各規制突部４９よりも後方側に位置するように設定されている。さらに、各弾性接触片５０の先端部（後方側の端部）は、角筒部４５の後端より前方側に位置するように設定されている。   The bent shapes of the eight elastic contact pieces 50 are all the same. That is, the first contact portion 521 of the first elastic contact piece 501 is disposed on the rear side of the second contact portion 522 of the second elastic contact piece 502. In addition, each of these contact portions 52 is set to be located on the rear side of each of the restricting protrusions 49 of each elastic contact piece 50. Furthermore, the front end portion (the end portion on the rear side) of each elastic contact piece 50 is set to be positioned on the front side from the rear end of the rectangular tube portion 45.

また、側壁４５Ｃ，４５Ｄ，４５Ｅの後端縁からは、繋ぎ部４２が延出されているとともに、繋ぎ部４２の後端縁からは、平板状の電線接続部４１が後方に向けて延出形成されている（図４参照）。繋ぎ部４２と電線接続部４１とは同幅とされている。電線３８は、電線接続部４１に対して溶着されるようになっている。   Further, the connecting portion 42 extends from the rear end edge of the side walls 45C, 45D, 45E, and the flat wire connecting portion 41 extends rearward from the rear end edge of the connecting portion 42. It is formed (see FIG. 4). The connecting portion 42 and the wire connecting portion 41 have the same width. The electric wire 38 is welded to the electric wire connecting portion 41.

このように電線３８を電線接続部４１に対して溶着する構成とした場合には、実施形態１のように圧着させる構成と比較して、多接点型端子の板厚を薄くすることができる。また、板厚が薄くなることにより、弾性接触片５０の折り返し部５１の曲率Ｒ（曲率半径をｒとした場合の１／ｒで定義される値）を大きくすることが可能となり、多接点型端子の小型化を図ることができる。   Thus, when it is set as the structure which welds the electric wire 38 with respect to the electric wire connection part 41, compared with the structure crimped | bonded like Embodiment 1, the board thickness of a multi-contact type terminal can be made thin. Further, by reducing the plate thickness, it is possible to increase the curvature R of the folded portion 51 of the elastic contact piece 50 (a value defined by 1 / r when the radius of curvature is r), which is a multi-contact type. The terminal can be miniaturized.

本実施形態の雌端子４０は上記構成であって、次に、雄端子１０と雌端子４０との接続動作および作用効果について説明する。   The female terminal 40 of the present embodiment has the above-described configuration. Next, the connection operation and operation effect between the male terminal 10 and the female terminal 40 will be described.

電線３８に接続された雌端子４０に雄端子１０の接続部１１を挿入すると、接続部１１は、全ての弾性接触片５０を外側に向けて弾性変位させつつ、まず、第２接点部５２２の間に割って入る。この時接続部１１は、主に、互いに直交する２本の対称軸Ａ２（図７参照）上に配された４つの第２接点部５２２により弾性的に挟持された状態となる。   When the connection part 11 of the male terminal 10 is inserted into the female terminal 40 connected to the electric wire 38, the connection part 11 firstly displaces all the elastic contact pieces 50 toward the outside, and first of the second contact part 522. Break in between. At this time, the connection part 11 is mainly in a state of being elastically sandwiched between the four second contact parts 522 arranged on two symmetry axes A2 (see FIG. 7) orthogonal to each other.

さらに接続部１１を奥方に挿入すると、接続部１１は、第１接点部５２１の間に割って入る。そして接続部１１が角筒部４５内の正規位置まで挿入されると、接続部１１の先端側は、互いに直交する２本の対称軸Ａ１（図７参照）上に配された４つの第１接点部５２１によって挟持された状態となる。これにより、雄雌の端子１０，４０間が電気的に接続される。なお、対称軸Ａ１とＡ２とは、図７に示すように、周方向に４５度ずれた位置に配されている。   When the connecting portion 11 is further inserted in the back, the connecting portion 11 is split between the first contact portions 521. When the connecting portion 11 is inserted to the normal position in the rectangular tube portion 45, the front end side of the connecting portion 11 has four first axes arranged on two symmetry axes A1 (see FIG. 7) orthogonal to each other. It is in a state of being sandwiched by the contact portion 521. Thus, the male and female terminals 10 and 40 are electrically connected. Note that the symmetry axes A1 and A2 are arranged at positions shifted by 45 degrees in the circumferential direction, as shown in FIG.

すなわち、接続部１１は、先端側（後方側）が４つの第１接点部５２１により挟持されるとともに、基端側（前方側）が、第１接点部から４５度ずれた個所にある４つの第２接点部５２２により挟持された状態となる。   That is, the connecting portion 11 has four distal end sides (rear side) sandwiched between the four first contact portions 521 and the proximal end side (front side) at a position shifted by 45 degrees from the first contact portion. The state is sandwiched between the second contact portions 522.

このように本実施形態の雌端子４０によれば、上記実施形態１と同様の作用効果に加え、以下の作用効果が得られる。すなわち、雄端子１０の接続部１１を、その先端側においては第１接点部５２１により挟持するとともに、基端側においては第２接点部５２２により挟持しているから、前後方向の異なる位置において、かつ、周方向の異なる位置において、本体部４３内に保持することができる。しかも、弾性接触片５０は全て同寸法かつ同形状とされているので、全ての接点部５２において、雄端子１０に対する接触圧を均等にすることができる。すなわち、両端子間の傾き（こじり）が発生し難くなるから、端子表面のめっきがより剥がれ難く、耐久性に優れる多接点型端子を提供することができる。   As described above, according to the female terminal 40 of the present embodiment, the following functions and effects can be obtained in addition to the functions and effects similar to those of the first embodiment. That is, since the connection part 11 of the male terminal 10 is sandwiched by the first contact part 521 on the distal end side and the second contact part 522 on the proximal end side, at different positions in the front-rear direction, And it can hold | maintain in the main-body part 43 in the position where circumferential directions differ. Moreover, since all the elastic contact pieces 50 have the same size and the same shape, the contact pressure with respect to the male terminal 10 can be made uniform in all the contact portions 52. That is, since it is difficult for tilting between the two terminals to occur, it is possible to provide a multi-contact terminal that is more difficult to peel off from the terminal surface and is excellent in durability.

また、雄端子１０の接続部１１を雌端子４０に挿入する際、接点部５２間に割って入る際に最も挿入抵抗が大きくなるが、本実施形態の雌端子４０によれば、８つの接点部５２が前後方向に分散されて配置されているから、挿入抵抗が小さくなり、接続時の作業性が向上する。   Further, when the connection portion 11 of the male terminal 10 is inserted into the female terminal 40, the insertion resistance is maximized when the connection portion 11 is divided between the contact portions 52. However, according to the female terminal 40 of the present embodiment, eight contact points are provided. Since the parts 52 are arranged in a distributed manner in the front-rear direction, the insertion resistance is reduced and workability at the time of connection is improved.

さらに、本実施形態のように角筒部４５を偶数の多角形状とした場合には、弾性接触片５０が角筒部４５の径方向において対向した状態となるので、奇数の多角形状とする場合と比較して接点部５２間の距離の管理が容易となり、より製造し易くなる。
＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。 Furthermore, when the rectangular tube portion 45 is an even-numbered polygonal shape as in the present embodiment, the elastic contact pieces 50 are opposed to each other in the radial direction of the rectangular tube portion 45. Compared to the above, the distance between the contact points 52 can be easily managed, and the manufacturing becomes easier.
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

（１）上記実施形態では、弾性接触片３０、５０は、角筒部２５、４５の前端縁から延出する構成としたが、後端縁から延出し、前方に向けて折り返す構成としてもよい。   (1) In the above-described embodiment, the elastic contact pieces 30 and 50 are configured to extend from the front end edges of the rectangular tube portions 25 and 45, but may be configured to extend from the rear end edges and be turned forward. .

（２）上記実施形態では、雌端子２０、４０の角筒部２５、４５は、その折り曲げ方向の端縁同士を係止部２６、４６により開き止めする構成としたが、必ずしもこのような構成でなくてもよく、例えば溶接等により開き止めしてもよい。   (2) In the above-described embodiment, the rectangular tube portions 25 and 45 of the female terminals 20 and 40 are configured to prevent the edges in the bending direction from opening with the locking portions 26 and 46. However, such a configuration is not necessarily required. For example, the opening may be stopped by welding or the like.

（３）上記実施形態では、一の弾性接触片３０、５０の基端部に隣接して設ける拡張部３４、５４を、隣り合う弾性接触片３０、５０の拡張部３４、５４と兼用して、互いに隣り合う弾性接触片３０、５０の間にひとつずつ設ける構成としたが、各弾性接触片３０、５０毎に設ける構成、すなわち、互いに隣り合う弾性接触片３０、５０の間に２つずつ設ける構成としてもよい。   (3) In the above embodiment, the extended portions 34 and 54 provided adjacent to the base end portions of one elastic contact piece 30 and 50 are also used as the extended portions 34 and 54 of the adjacent elastic contact pieces 30 and 50. Although one configuration is provided between the elastic contact pieces 30 and 50 adjacent to each other, a configuration provided for each elastic contact piece 30 and 50, that is, two sets between the elastic contact pieces 30 and 50 adjacent to each other. It is good also as a structure to provide.

（４）また、拡張部３４，５４は必ずしも設けなくてもよく、省略することもできる。   (4) Moreover, the expansion parts 34 and 54 do not necessarily need to be provided and can be omitted.

（５）上記実施形態では、角筒部２５、４５の複数の側壁の全てから弾性接触片３０、５０を延出する構成としたが、選択した側壁のみから延出する構成としてもよい。   (5) In the above-described embodiment, the elastic contact pieces 30 and 50 are extended from all of the plurality of side walls of the square tube portions 25 and 45. However, the elastic contact pieces 30 and 50 may be extended only from the selected side walls.

（６）上記実施形態では、略七角筒状、および、略八角筒状の角筒部２５、４５を示したが、角筒部は三角筒以上の多角筒状であればよい。   (6) In the above-described embodiment, the square tube portions 25 and 45 having a substantially heptagonal tube shape and a substantially octagonal tube shape have been shown.

（７）上記実施形態１では、各接点部３２を前後方向における同位置に設け、実施形態２では各接点部５２を前後方向における２箇所に設ける構成を示したが、前後方向における３箇所以上に設ける構成としてもよい。   (7) In the first embodiment, each contact portion 32 is provided at the same position in the front-rear direction, and in the second embodiment, each contact portion 52 is provided at two places in the front-rear direction. It is good also as a structure provided in.

１０…雄端子（相手側端子）
２０、４０…雌端子（多接点型端子）
２５、４５…角筒部
２５Ａ〜２５Ｇ，４５Ａ〜４５Ｈ…側壁
２６、４６…係止部
２７、４７…係止片
２８、４８…係止凸部
３０、５０…弾性係止片
３１、５１…折り返し部
３４、５４…拡張部 10 ... Male terminal (mating terminal)
20, 40 ... Female terminal (multi-contact type terminal)
25, 45 ... Square tube portions 25A-25G, 45A-45H ... Side walls 26, 46 ... Locking portions 27, 47 ... Locking pieces 28, 48 ... Locking protrusions 30, 50 ... Elastic locking pieces 31, 51 ... Folded part 34, 54 ... extended part

Claims (5)

多角筒状の角筒部と、
前記角筒部の各側壁から延出され、前記角筒部の内側において丸棒状の相手側端子の外周面に対して弾性接触される複数の弾性接触片と、が一体的に設けられていることを特徴とする多接点型端子。 A polygonal tube-shaped rectangular tube portion;
A plurality of elastic contact pieces extending from each side wall of the rectangular tube portion and elastically contacting the outer peripheral surface of the round bar-like mating terminal inside the rectangular tube portion are integrally provided. Multi-contact type terminal characterized by this. 前記複数の弾性接触片は前記相手側端子との嵌合方向の長さ寸法が同等とされるとともに、前記相手側端子との嵌合方向において異なる位置に配されていることを特徴とする請求項１に記載の多接点型端子。 The plurality of elastic contact pieces have the same length in the fitting direction with the mating terminal and are arranged at different positions in the mating direction with the mating terminal. Item 2. The multi-contact terminal according to Item 1. 前記角筒部には、前記弾性接触片の基端部に隣接して前記弾性接触片の延出方向に沿って延出された拡張部が設けられていることを特徴とする請求項１または請求項２に記載の多接点型端子。 2. The extended portion extending along the extending direction of the elastic contact piece is provided in the square tube portion adjacent to a base end portion of the elastic contact piece. The multi-contact type terminal according to claim 2. 前記弾性接触片は、前記角筒部の側壁のうち前記相手側端子との嵌合方向の前端縁から延出されるとともに折り返し部により後方側に向けて折り返されており、前記拡張部は、前記折り返し部よりも前方側まで延出されていることを特徴とする請求項３に記載の多接点型端子。 The elastic contact piece extends from the front end edge of the side wall of the rectangular tube portion in the fitting direction with the mating terminal and is folded back toward the rear side by the folded portion, The multi-contact type terminal according to claim 3, wherein the multi-contact type terminal is extended to the front side of the folded portion. 前記角筒部は、板状部材を角筒状に折り曲げるとともに、その折り曲げ方向の端縁同士を固定することで開き止めされていることを特徴とする請求項１ないし請求項４のいずれか一項に記載の多接点型端子。 5. The square tube portion is prevented from being opened by bending a plate-like member into a square tube shape and fixing edges in a bending direction thereof. The multi-contact type terminal described in the item.
JP2013239107A 2013-11-19 2013-11-19 Multi-contact terminal Expired - Fee Related JP6086244B2 (en)

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JP2013239107A JP6086244B2 (en) 2013-11-19 2013-11-19 Multi-contact terminal
US15/037,335 US9748685B2 (en) 2013-11-19 2014-11-07 Multi-contact terminal
CN201480063356.8A CN105765795B (en) 2013-11-19 2014-11-07 Multi-contact type terminal
DE112014005274.4T DE112014005274B4 (en) 2013-11-19 2014-11-07 Multiple contact connection
PCT/JP2014/079574 WO2015076122A1 (en) 2013-11-19 2014-11-07 Multicontact terminal

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WO2015076122A1 (en) 2015-05-28
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US9748685B2 (en) 2017-08-29
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